Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals

被引：9

作者：

Chen, Lung-Chien ^{[1
]}

Tseng, Zong-Liang ^{[1
]}

Lin, Dai-Wei ^{[1
]}

Lin, Yu-Shiang ^{[1
]}

Chen, Sheng-Hui ^{[2
]}

机构：

[1] Natl Taipei Univ Technol, Dept Electroopt Engn, 1,3 Sect,Chung Hsiao East Rd, Taipei 106, Taiwan

[2] Natl Cent Univ, Dept Opt & Photon, 300 Chung Da Rd, Chungli 32001, Taiwan

来源：

NANOMATERIALS | 2018年 / 8卷 / 07期

关键词：

PeLEDs; OAB; perovskite; quantum confinement effect; LEAD IODIDE PEROVSKITES; HALIDE PEROVSKITE; INTERFACIAL CONTROL; ANION-EXCHANGE; CRYSTAL-GROWTH; SOLAR-CELLS; THIN-FILMS; EFFICIENCY; LUMINESCENT; ELECTRON;

D O I：

10.3390/nano8070459

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, we demonstrate an easy and reliable solution-processed technique using an extra adductive in the perovskite precursor solution. Using this method, a dense and uniform morphology with full surface coverage and highly fluorescent films with nanoscale crystal grains can be obtained. The high exciton binding energy in the resulting films employing octylammonium bromide (OAB) adductives proved that high fluorescence originated from the quantum confinement effect. The corresponding perovskite light-emitting diodes (PeLEDs) that were based on this technique also exhibited excellent device performance.

引用

页数：10

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